Update default.html

_layouts/default.html

@@ -9,6 +9,9 @@ layout: base
 {% if language == "_it" %}
 	{% assign language = "it" %}
 	{% assign links = site.it | sort: "idx" %}
+{% else if language == "_de" %}
+	{% assign language = "de" %}
+	{% assign links = site.de | sort: "idx" %}
 {% else %}
 	{% assign language = "en" %}
 	{% assign links = site.en | sort: "idx" %}